content: add Arcade Coin lock sound #6

	name: Validate Single Component

	on:
	pull_request:
	branches: [main]
	paths:
	- 'content/_/*'

	jobs:
	single-component-check:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Check only one collection is modified
	run: \|
	# Get changed files under content/ compared to the base branch
	CHANGED_FILES=$(git diff --name-only origin/main...HEAD -- 'content/_*/' \|\| true)

	if [ -z "$CHANGED_FILES" ]; then
	echo "No collection files changed."
	exit 0
	fi

	echo "Changed files:"
	echo "$CHANGED_FILES"
	echo ""

	# Extract unique collection directories, ignoring tags.yaml and README.md
	COLLECTIONS=$(echo "$CHANGED_FILES" \
	\| grep -v '^content/tags\.yaml$' \
	\| grep -v '/README\.md$' \
	\| sed -n 's\|^content/$_[^/]$/.\|\1\|p' \
	\| sort -u)

	if [ -z "$COLLECTIONS" ]; then
	echo "Only non-collection files changed (tags.yaml, README.md). OK."
	exit 0
	fi

	COUNT=$(echo "$COLLECTIONS" \| wc -l \| tr -d ' ')
	echo "Collections touched: $COLLECTIONS"

	if [ "$COUNT" -gt 1 ]; then
	COLLECTION_LIST=$(echo "$COLLECTIONS" \| paste -sd', ' -)
	echo ""
	echo "::error::PRs should only add one component type at a time. Found changes in: $COLLECTION_LIST"
	exit 1
	fi

	echo "Single collection modified: $COLLECTIONS. OK."

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